The GA setup options are only available when GA is selected as the algorithm.
To adjust the GA options, uncheck the Use default pyDarwin GA options box.
With the Use default box unchecked, enter the new values.
Number of best models and Number of parents values must be positive integers.
Fraction of mating pairs, Mutation rate, and Probability values must be real numbers between 0.0 and 1.0.
Parameter of the niche penalty must be a real number.
Niche penalty value must be a positive real number.
The Niche penalty helps maintain diversity of models, avoiding premature convergence of the search by penalizing when models are too similar to other models in the current generation. (This is the same as the niche radius setting on the Penalties page and modifying the value will overwrite the value entered on the Penalties page.)